Amazon.com : K&F Concept 77mm Variable ND2-ND400 ND Lens Filter (1-9 Stops) for Camera Lens, Adjustable Neutral Density Filter with Microfiber Cleaning Cloth (B-Series) : Electronics
Amazon.com : NEEWER 77mm 4-in-1 Magnetic Lens Filter Kit, Includes Neutral Density ND1000+MCUV+CPL+Adapter Ring with 42-Layer Coating/Ultra Slim/Waterproof/Scratch Resistant HD Optical Glass&Water-Resistant Pouch : Electronics
Amazon.com : K&F Concept 77mm Variable ND Lens Filter ND2-ND400 (1-9 Stops) 18 Multi-Layer Coatings Adjustable Neutral Density Ultra Slim Lens Filter for Camera Lens (K-Series) : Electronics
Amazon.com : K&F Concept 77mm Black Diffusion 1/4 Effect & Variable ND2-ND32 ND Filter 2-in-1 for Camera Lens with 28 Multi-Layer Coatings (Nano-X Series) : Electronics
Amazon.com : K&F Concept 37mm Variable ND Filter ND2-ND32 Camera Lens Filter (1-5 Stops) No X Cross HD Neutral Density Filter with 28 Multi-Layer Coatings Waterproof (Nano-X Series) : Electronics
Amazon.com : 77mm ND Variable Neutral Density Filter for Canon EF 70-200mm f/2.8 L is II USM Lens : Electronics
Amazon.com : Neewer 77mm Variable Fader ND Filter Neutral Density Variable Filter ND2 to ND32 (1-5 Stop) for Camera Lens + No Black Cross + Multilayer Coating + Ultra-Thin Frame Design : Electronics
Amazon.com : K&F Concept 77mm Fixed ND Lens Filter Kit, Neutral Density ND4 ND8 ND64 ND1000 Filter Set with 28 Layers Multi-Coated HD Optical Glass and 4-Filter Pouch : Electronics